Aftertreatment device for an exhaust treatment system



FIG. 1 is a left side elevation view of the aftertreatment device for an exhaust treatment system;

FIG. 2 is a right side elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a perspective view thereof.

The broken line showing of parts of the drawings is included for the purpose of illustrating use and environment and forms no part of the claimed design. 

CLAIM The ornamental design for an aftertreatment device for an exhaust treatment system, as shown and described. 